Table 4.
Highs | 1 | 2 | 3 | 4 | 5 | 6 | |
Time frame | 96–99 | 94–99 | 92–99 | 96–99 | 93–99 | 97–99 | |
No Covariate adjustment | |||||||
Obs1 | 371 | 305 | * | 293 | 161 | 189 | |
RR2 | 1.97 | 2.03 | * | 1.68 | 1.66 | 1.53 | |
p-value | <0.0001 | <0.0001 | * | <0.0001 | 0.001 | 0.027 | |
Percent Urban adjustment | |||||||
Obs1 | 367 | 245 | 499 | 1147 | * | 2286 | |
RR2 | 1.93 | 1.81 | 1.50 | 1.96 | * | 1.51 | |
p-value | <0.0001 | <0.0001 | <0.0001 | <0.0001 | * | 0.003 | |
SES adjustment | |||||||
Obs1 | 306 | 305 | * | 2388 | * | * | |
RR2 | 1.68 | 1.99 | * | 1.67 | * | * | |
p-value | <0.0001 | <0.0001 | * | <0.0001 | * | * | |
SES & Percent Urban adjustment | |||||||
Obs1 | 306 | 20211 | * | 2368 | * | * | |
RR2 | 1.63 | 1.83 | * | 1.68 | * | * | |
P-value | <0.0001 | <0.0001 | * | <0.0001 | * | * | |
Lows | A | B | C | E | F | G | J |
Time frame | 90–97 | 90–99 | 90–96 | 90–97 | 90–95 | 90–96 | 90–92 |
No Covariates adjustment | |||||||
Obs1 | 114 | 64 | 187 | 87 | 146 | 178 | 58 |
RR2 | 0.47 | 0.41 | 0.59 | 0.54 | 0.60 | 0.57 | 0.53 |
p-value | <0.0001 | <0.0001 | <0.0001 | 0.0002 | <0.0001 | <0.0001 | 0.027 |
Percent Urban adjustment | |||||||
Obs1 | 1084 | 2455 | 187 | 87 | †6 | 178 | 64 |
RR2 | 0.48 | 1.81 | 0.61 | 0.54 | 0.08 | 0.58 | 0.53 |
p-value | <0.0001 | <0.0001 | <0.0001 | <0.0001 | 0.0004 | <0.0001 | 0.005 |
SES adjustment | |||||||
Obs1 | * | * | 187 | 1499 | 7410 | * | 68 |
RR2 | * | * | 0.64 | 0.63 | 0.45 | * | 0.52 |
p-value | * | * | <0.0001 | <0.0001 | <0.0001 | * | <0.0001 |
SES & Percent Urban adjustment | |||||||
Obs1 | * | * | 214 | 1499 | 7410 | * | 64 |
RR2 | * | * | 0.70 | 0.64 | 0.46 | * | 0.51 |
P-value | * | * | 0.007 | 0.003 | <0.0001 | * | 0.002 |
1Obs = observed cases. 2RR = relative risk. 3The time frame for High 7 when adjusting for percent urban is 95–99. 4The time frame for Low A when adjusting for percent urban is 90–98. 5The time frame for Low B when adjusting for percent urban is 90–98. 6The time frame for Low F when adjusting for percent urban is 90–91. 7The time frame for High 4 when adjusting for percent urban is 90–99. 8The time frame for High 4 when adjusting for SES is 97–99. 9The time frame for Low E when adjusting for SES and SES with percent urban is 90–95. 10The time frame for Low F when adjusting for SES and SES with percent urban is 90–93. 11The time frame for High 2 when adjusting for SES and percent urban is 95–99. *Cluster not significant for this analysis. † Number of cases too small to report for confidentiality reasons.